Positive aspects of Auckland life are its mild climate, plentiful employment and educational opportunities, as well as numerous leisure facilities. Meanwhile, traffic problems, the lack of good public transport, and increasing housing costs have been cited by many Aucklanders as among the strongest negative factors of living there,together with crime. Nonetheless, Auckland currently ranks 4th equal in a survey of the quality of life of 215 major cities of the world (2009 data). In 2006, Auckland placed 23rd on the UBS list of the world's richest cities.